AbstractNodeVisitor (JDO1 Reference Implementation SNAPSHOT)

java.lang.Object
- org.apache.jdo.jdoql.tree.AbstractNodeVisitor

All Implemented Interfaces:

NodeVisitor

Direct Known Subclasses:

FilterExpressionDumper, MemoryQuery
```
public abstract class AbstractNodeVisitor
extends java.lang.Object
implements NodeVisitor
```
This class provides a default implementation for the node visitor pattern. Methods having derived nodes as arguments delegate to those methods having least derived nodes as arguments. As some visitors do not need to know each specific operations, they do not need to provide code for those operations. In addition to methods defined in the interface NodeVisitor this class defines protected methods taking non-leaf nodes in terms of the node hierarchy of interfaces.

Author:

Michael Watzek

Constructor Summary

Constructors
Constructor and Description

AbstractNodeVisitor()

Constructors
Constructor and Description
`AbstractNodeVisitor()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`arrive(AndExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(AscendingOrderingExpression node)` This method delegates to `arrive` casting the argument `node` to `OrderingExpression`.
`protected void`	`arrive(BinaryExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(BooleanLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(ByteLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(CandidateClass node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`void`	`arrive(CastExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(CharLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(ComplementExpression node)` This method delegates to `arrive` casting the argument `node` to `UnaryExpression`.
`void`	`arrive(ConditionalAndExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(ConditionalOrExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(ConstantExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(ContainsCallExpression node)` This method delegates to `arrive` casting the argument `node` to `MethodCallExpression`.
`protected void`	`arrive(Declaration node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`void`	`arrive(DescendingOrderingExpression node)` This method delegates to `arrive` casting the argument `node` to `OrderingExpression`.
`void`	`arrive(DivideExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(DoubleLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(EndsWithCallExpression node)` This method delegates to `arrive` casting the argument `node` to `MethodCallExpression`.
`void`	`arrive(EqualsExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`protected void`	`arrive(Expression node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`void`	`arrive(FieldAccessExpression node)` This method delegates to `arrive` casting the argument `node` to `IdentifierExpression`.
`void`	`arrive(FloatLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(GreaterThanEqualsExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(GreaterThanExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(IdentifierExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(IntLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(IsEmptyCallExpression node)` This method delegates to `arrive` casting the argument `node` to `MethodCallExpression`.
`void`	`arrive(LessThanEqualsExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(LessThanExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(LongLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`protected void`	`arrive(MethodCallExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(MinusExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`protected void`	`arrive(Node node)` This method defines the default implementation for all `arrive` methods: It immediately returns without executing any other instruction.
`void`	`arrive(NotEqualsExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(NotExpression node)` This method delegates to `arrive` casting the argument `node` to `UnaryExpression`.
`protected void`	`arrive(OrderingExpression node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`void`	`arrive(OrExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(ParameterAccessExpression node)` This method delegates to `arrive` casting the argument `node` to `IdentifierExpression`.
`void`	`arrive(ParameterDeclaration node)` This method delegates to `arrive` casting the argument `node` to `Declaration`.
`void`	`arrive(PlusExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(QueryTree node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`void`	`arrive(ShortLiteralExpression node)` This method delegates to `arrive` casting the argument `node` to `ConstantExpression`.
`void`	`arrive(StartsWithCallExpression node)` This method delegates to `arrive` casting the argument `node` to `MethodCallExpression`.
`void`	`arrive(StaticFieldAccessExpression node)` This method delegates to `arrive` casting the argument `node` to `FieldAccessExpression`.
`void`	`arrive(ThisExpression node)` This method delegates to `arrive` casting the argument `node` to `IdentifierExpression`.
`void`	`arrive(TimesExpression node)` This method delegates to `arrive` casting the argument `node` to `BinaryExpression`.
`void`	`arrive(Type node)` This method delegates to `arrive` casting the argument `node` to `Node`.
`protected void`	`arrive(UnaryExpression node)` This method delegates to `arrive` casting the argument `node` to `Expression`.
`void`	`arrive(UnaryMinusExpression node)` This method delegates to `arrive` casting the argument `node` to `UnaryExpression`.
`void`	`arrive(UnaryPlusExpression node)` This method delegates to `arrive` casting the argument `node` to `UnaryExpression`.
`void`	`arrive(VariableAccessExpression node)` This method delegates to `arrive` casting the argument `node` to `IdentifierExpression`.
`void`	`arrive(VariableDeclaration node)` This method delegates to `arrive` casting the argument `node` to `Declaration`.
`java.lang.Object`	`leave(AndExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(AscendingOrderingExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `OrderingExpression`.
`protected java.lang.Object`	`leave(BinaryExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(BooleanLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(ByteLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(CandidateClass node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`java.lang.Object`	`leave(CastExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(CharLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(ComplementExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `UnaryExpression`.
`java.lang.Object`	`leave(ConditionalAndExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(ConditionalOrExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(ConstantExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(ContainsCallExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `MethodCallExpression`.
`protected java.lang.Object`	`leave(Declaration node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`java.lang.Object`	`leave(DescendingOrderingExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `OrderingExpression`.
`java.lang.Object`	`leave(DivideExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(DoubleLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(EndsWithCallExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `MethodCallExpression`.
`java.lang.Object`	`leave(EqualsExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`protected java.lang.Object`	`leave(Expression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`java.lang.Object`	`leave(FieldAccessExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `IdentifierExpression`.
`java.lang.Object`	`leave(FloatLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(GreaterThanEqualsExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(GreaterThanExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(IdentifierExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(IntLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(IsEmptyCallExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `MethodCallExpression`.
`java.lang.Object`	`leave(LessThanEqualsExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(LessThanExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(LongLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`protected java.lang.Object`	`leave(MethodCallExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(MinusExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`protected java.lang.Object`	`leave(Node node, java.lang.Object[] results)` This method defines the default implementation for all `leave` methods: It immediately returns `null` without executing any other instruction.
`java.lang.Object`	`leave(NotEqualsExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(NotExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `UnaryExpression`.
`protected java.lang.Object`	`leave(OrderingExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`java.lang.Object`	`leave(OrExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(ParameterAccessExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `IdentifierExpression`.
`java.lang.Object`	`leave(ParameterDeclaration node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Declaration`.
`java.lang.Object`	`leave(PlusExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(QueryTree node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`java.lang.Object`	`leave(ShortLiteralExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `ConstantExpression`.
`java.lang.Object`	`leave(StartsWithCallExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `MethodCallExpression`.
`java.lang.Object`	`leave(StaticFieldAccessExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `FieldAccessExpression`.
`java.lang.Object`	`leave(ThisExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `IdentifierExpression`.
`java.lang.Object`	`leave(TimesExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `BinaryExpression`.
`java.lang.Object`	`leave(Type node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Node`.
`protected java.lang.Object`	`leave(UnaryExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Expression`.
`java.lang.Object`	`leave(UnaryMinusExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `UnaryExpression`.
`java.lang.Object`	`leave(UnaryPlusExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `UnaryExpression`.
`java.lang.Object`	`leave(VariableAccessExpression node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `IdentifierExpression`.
`java.lang.Object`	`leave(VariableDeclaration node, java.lang.Object[] results)` This method delegates to `leave` casting the argument `node` to `Declaration`.
`boolean`	`walkNextChild(AndExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(AscendingOrderingExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `OrderingExpression`.
`protected boolean`	`walkNextChild(BinaryExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Expression`.
`boolean`	`walkNextChild(CastExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Expression`.
`boolean`	`walkNextChild(ComplementExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `UnaryExpression`.
`boolean`	`walkNextChild(ConditionalAndExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(ConditionalOrExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(ContainsCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `MethodCallExpression`.
`boolean`	`walkNextChild(DescendingOrderingExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `OrderingExpression`.
`boolean`	`walkNextChild(DivideExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(EndsWithCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `MethodCallExpression`.
`boolean`	`walkNextChild(EqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`protected boolean`	`walkNextChild(Expression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Node`.
`boolean`	`walkNextChild(FieldAccessExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `IdentifierExpression`.
`boolean`	`walkNextChild(GreaterThanEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(GreaterThanExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`protected boolean`	`walkNextChild(IdentifierExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Expression`.
`boolean`	`walkNextChild(IsEmptyCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `MethodCallExpression`.
`boolean`	`walkNextChild(LessThanEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(LessThanExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`protected boolean`	`walkNextChild(MethodCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Expression`.
`boolean`	`walkNextChild(MinusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`protected boolean`	`walkNextChild(Node node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method defines the default implementation for all `walkNextChild` methods: It immediately returns `true` without executing any other instruction.
`boolean`	`walkNextChild(NotEqualsExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(NotExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `UnaryExpression`.
`protected boolean`	`walkNextChild(OrderingExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Node`.
`boolean`	`walkNextChild(OrExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(PlusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`boolean`	`walkNextChild(QueryTree node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Node`.
`boolean`	`walkNextChild(StartsWithCallExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `MethodCallExpression`.
`boolean`	`walkNextChild(StaticFieldAccessExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `FieldAccessExpression`.
`boolean`	`walkNextChild(TimesExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `BinaryExpression`.
`protected boolean`	`walkNextChild(UnaryExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `Expression`.
`boolean`	`walkNextChild(UnaryMinusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `UnaryExpression`.
`boolean`	`walkNextChild(UnaryPlusExpression node, java.lang.Object resultOfPreviousChild, int indexOfNextChild)` This method delegates to `walkNextChild` casting the argument `node` to `UnaryExpression`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractNodeVisitor
```
public AbstractNodeVisitor()
```
- Method Detail
  - arrive
```
protected void arrive(BinaryExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(Declaration node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(Expression node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(MethodCallExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(OrderingExpression node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(Node node)
```
    This method defines the default implementation for all arrive methods: It immediately returns without executing any other instruction.
    
    Parameters:
    node - the node to be walked
  - arrive
```
protected void arrive(UnaryExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Parameters:
    node - the node to be walked
  - leave
```
protected java.lang.Object leave(BinaryExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
protected java.lang.Object leave(Declaration node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
protected java.lang.Object leave(Expression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
protected java.lang.Object leave(MethodCallExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
protected java.lang.Object leave(OrderingExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
protected java.lang.Object leave(Node node,
                     java.lang.Object[] results)
```
    This method defines the default implementation for all leave methods: It immediately returns null without executing any other instruction.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    null
  - leave
```
protected java.lang.Object leave(UnaryExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(BinaryExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(Expression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Node. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(IdentifierExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(MethodCallExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(Node node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method defines the default implementation for all walkNextChild methods: It immediately returns true without executing any other instruction.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    true
  - walkNextChild
```
protected boolean walkNextChild(OrderingExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Node. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
protected boolean walkNextChild(UnaryExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Expression. It returns the value of that method.
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - arrive
```
public void arrive(AndExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(AscendingOrderingExpression node)
```
    This method delegates to arrive casting the argument node to OrderingExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(BooleanLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ByteLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(CandidateClass node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(CastExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(CharLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ComplementExpression node)
```
    This method delegates to arrive casting the argument node to UnaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ConditionalAndExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ConditionalOrExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ConstantExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ContainsCallExpression node)
```
    This method delegates to arrive casting the argument node to MethodCallExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(DescendingOrderingExpression node)
```
    This method delegates to arrive casting the argument node to OrderingExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(DivideExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(DoubleLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(EqualsExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(EndsWithCallExpression node)
```
    This method delegates to arrive casting the argument node to MethodCallExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(FieldAccessExpression node)
```
    This method delegates to arrive casting the argument node to IdentifierExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(FloatLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(GreaterThanEqualsExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(GreaterThanExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(IdentifierExpression node)
```
    This method delegates to arrive casting the argument node to Expression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(IntLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(IsEmptyCallExpression node)
```
    This method delegates to arrive casting the argument node to MethodCallExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(LessThanEqualsExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(LessThanExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(LongLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(MinusExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(NotEqualsExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(NotExpression node)
```
    This method delegates to arrive casting the argument node to UnaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(OrExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ParameterAccessExpression node)
```
    This method delegates to arrive casting the argument node to IdentifierExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ParameterDeclaration node)
```
    This method delegates to arrive casting the argument node to Declaration.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(PlusExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(QueryTree node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ShortLiteralExpression node)
```
    This method delegates to arrive casting the argument node to ConstantExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(StartsWithCallExpression node)
```
    This method delegates to arrive casting the argument node to MethodCallExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(StaticFieldAccessExpression node)
```
    This method delegates to arrive casting the argument node to FieldAccessExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(ThisExpression node)
```
    This method delegates to arrive casting the argument node to IdentifierExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(TimesExpression node)
```
    This method delegates to arrive casting the argument node to BinaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(Type node)
```
    This method delegates to arrive casting the argument node to Node.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(UnaryMinusExpression node)
```
    This method delegates to arrive casting the argument node to UnaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(UnaryPlusExpression node)
```
    This method delegates to arrive casting the argument node to UnaryExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(VariableAccessExpression node)
```
    This method delegates to arrive casting the argument node to IdentifierExpression.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - arrive
```
public void arrive(VariableDeclaration node)
```
    This method delegates to arrive casting the argument node to Declaration.
    
    Specified by:
    
    arrive in interface NodeVisitor
    
    Parameters:
    node - the node to be walked
  - leave
```
public java.lang.Object leave(AndExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(AscendingOrderingExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to OrderingExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(BooleanLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ByteLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(CandidateClass node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(CastExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(CharLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ComplementExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ConditionalAndExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ConditionalOrExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ConstantExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ContainsCallExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(DescendingOrderingExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to OrderingExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(DivideExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(DoubleLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(EndsWithCallExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(EqualsExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(FieldAccessExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to IdentifierExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(FloatLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(GreaterThanEqualsExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(GreaterThanExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(IdentifierExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Expression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(IntLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(IsEmptyCallExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(LessThanEqualsExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(LessThanExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(LongLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(MinusExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(NotEqualsExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(NotExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(OrExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ParameterAccessExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to IdentifierExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ParameterDeclaration node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Declaration. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(PlusExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(QueryTree node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ShortLiteralExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to ConstantExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(StartsWithCallExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(StaticFieldAccessExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to FieldAccessExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(ThisExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to IdentifierExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(TimesExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(Type node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Node. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(UnaryMinusExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(UnaryPlusExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(VariableAccessExpression node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to IdentifierExpression. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - leave
```
public java.lang.Object leave(VariableDeclaration node,
                     java.lang.Object[] results)
```
    This method delegates to leave casting the argument node to Declaration. It returns the value of that method.
    
    Specified by:
    
    leave in interface NodeVisitor
    
    Parameters:
    node - the node having been walked
    results - the results of walking the node's children
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(AndExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(AscendingOrderingExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to OrderingExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(CastExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Expression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(ComplementExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(ConditionalAndExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(ConditionalOrExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(ContainsCallExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(DescendingOrderingExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to OrderingExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(DivideExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(EndsWithCallExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(EqualsExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(FieldAccessExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to IdentifierExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(GreaterThanEqualsExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(GreaterThanExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(IsEmptyCallExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(LessThanEqualsExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(LessThanExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(MinusExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(NotEqualsExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(NotExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(OrExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(PlusExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(QueryTree node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to Node. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(StartsWithCallExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to MethodCallExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(StaticFieldAccessExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to FieldAccessExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(TimesExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to BinaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(UnaryMinusExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call
  - walkNextChild
```
public boolean walkNextChild(UnaryPlusExpression node,
                    java.lang.Object resultOfPreviousChild,
                    int indexOfNextChild)
```
    This method delegates to walkNextChild casting the argument node to UnaryExpression. It returns the value of that method.
    
    Specified by:
    
    walkNextChild in interface NodeVisitor
    
    Parameters:
    node - the parent node of the children currently walked
    resultOfPreviousChild - the result of walking the node's previous child
    indexOfNextChild - the index of the next child to be walked
    
    Returns:
    the result of the delegation call

Class AbstractNodeVisitor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractNodeVisitor

Method Detail

arrive

arrive

arrive

arrive

arrive

arrive

arrive

leave

leave

leave

leave

leave

leave

leave

walkNextChild

walkNextChild

walkNextChild

walkNextChild

walkNextChild

walkNextChild

walkNextChild

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

arrive

leave

leave

leave

leave

leave

leave

leave